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时间：2017-05-17 08:00:14166网络整理admin

A NASA spacecraft launched on Sunday will map the size and shape of the “bubble” surrounding our solar system, where the solar wind collides with interstellar gas. The Interstellar Boundary Explorer (IBEX) mission will observe this region from Earth orbit by collecting particles flung our way from the border zone. Autumn air temperatures have risen to record levels in the Arctic. According to an annual report from the US National Oceanic and Atmospheric Administration,